51631006234 has 48 divisors (see below), whose sum is σ = 82581250752. Its totient is φ = 24202943424.

The previous prime is 51631006183. The next prime is 51631006319. The reversal of 51631006234 is 43260013615.

It is a junction number, because it is equal to n+sod(n) for n = 51631006196 and 51631006205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12896077 + ... + 12900079.

It is an arithmetic number, because the mean of its divisors is an integer number (1720442724).

Almost surely, 2^51631006234 is an apocalyptic number.

51631006234 is a deficient number, since it is larger than the sum of its proper divisors (30950244518).

51631006234 is a wasteful number, since it uses less digits than its factorization.

51631006234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291 (or 4268 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 51631006234 its reverse (43260013615), we get a palindrome (94891019849).

The spelling of 51631006234 in words is "fifty-one billion, six hundred thirty-one million, six thousand, two hundred thirty-four".